21441993

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{359}}^1\times {\mathrm{463}}^1$

素因数の和:868

約数の個数: 16

約数和(自身を含む): 29399040

約数和(自身を除く): 7957047

約数列:

[1, 3, 43, 129, 359, 463, 1077, 1389, 15437, 19909, 46311, 59727, 166217, 498651, 7147331, 21441993]

約数ペア:

[(1, 21441993), (3, 7147331), (43, 498651), (129, 166217), (359, 59727), (463, 46311), (1077, 19909), (1389, 15437)]